Whats tan? some help i dont understand. I need the steps

A =

Step-by-step explanation:

First you have to use the pythagorean theorem to find the missing side.

You know that the hypotenuse is 17, because it is opposite of the right angle, and one side is 15.

So knowing this, you can put

15² + b² = 17²

225 + b² = 289

-225         -255

b² =

b = 8

You can now plug in 8 to the missing side.

Now you can go back to the trig phrase "SOH CAH TOA"

TOA, meaning Tan = , the number opposite of theta (θ) is 15, and the number adjacent to theta (your missing number) is 8.

Leaving you with Tanθ=

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.